Echinococcus granulosus strain typing in North Africa: comparison of eight nuclear and mitochondrial DNA fragments.

abstract：:A comparison has been made of the responses of random-bred CFLP and inbred NIH mice to infection with Trichuris muris. Random-bred mice showed greater variation in worm burdens and less uniformity in worm expulsion. Irradiation prior to infection reduced variation, but did not increase the mean level of infection abov...

journal_title：Parasitology

authors： Wakelin D

更新日期：1975-08-01 00:00:00

abstract：:This paper investigates a cohort of 2187 laboratory reared Culex quinquefasciatus fed on 69 human volunteers, including 59 persons with different levels of Wuchereria bancrofti microfilariae and 10 without microfilaria. Mosquitoes were followed until death. Mosquito survival was analysed in relation to the level of mi...

journal_title：Parasitology

authors： Krishnamoorthy K,Subramanian S,Van Oortmarssen GJ,Habbema JD,Das PK

更新日期：2004-07-01 00:00:00

abstract：:n order to investigate the dynamics of Septin4 (Sept4) expression and its function in the formation of fibrotic livers in mice infected with Schistosoma japonicum, we constructed the mouse model of S. japonicum egg-induced liver fibrosis for 24 weeks. Immunohistochemical staining, qRT-PCR and Western blot were used to...

journal_title：Parasitology

authors： Duan YN,Qian HY,Qin YW,Zhu DD,He XX,Zhou Q,Yang YN,Bao J,Feng JR,Sun W,Chen JL

更新日期：2011-07-01 00:00:00

abstract：:Trichinella spiralis infections may lead to the loss of behavioural dominance among male mice. Reversals of dominance order first appear at the time when newborn larvae are released into the circulation of the host. The duration of dominance reversals bears no relationship to the number of muscle larvae harboured. ...

journal_title：Parasitology

authors： Rau ME

更新日期：1984-04-01 00:00:00

abstract：:The complex life-cycles of parasitic animals are a product of exploiting the process of development to generate organisms with different biological potentials within a species. Successive stages of the parasite adapt to functions such as host invasion and transmission, and to the colonization of a variety of niches, o...

journal_title：Parasitology

authors： Bianco AE,Maizels RM

更新日期：1989-01-01 00:00:00

abstract：:The impact of immunization with gentamicin-attenuated Leishmania infantum (H-line) on the immunophenotypic profile of popliteal lymph node (PLN) and peripheral blood mononuclear cells (PBMCs) of dogs was assessed by flow cytometry and immunohistochemistry. Compared with the dogs infected with L. infantum wild-type (Gr...

journal_title：Parasitology

authors： Daneshvar H,Sedghy F,Dabiri S,Kamiabi H,Molaei MM,Phillips S,Burchmore R

更新日期：2012-11-01 00:00:00

abstract：:Two cDNAs encoding cysteine proteinases were isolated from a cDNA library constructed from feeding females of Heterodera glycines. The library was screened with a cysteine proteinase gene fragment originally amplified from cDNA of H. glycines. Database searches predict that 1 cDNA (hgcp-I) encodes a cathepsin L-like p...

journal_title：Parasitology

authors： Urwin PE,Lilley CJ,McPherson MJ,Atkinson HJ

更新日期：1997-06-01 00:00:00

abstract：:The response of the plant parasitic nematode, Meloidogyne incognita (J2 stage) to avermectin B2a-23-one is triphasic, comprising an initial loss of locomotor activity where the juveniles remain sensitive to touch, a recovery phase and a final loss of activity where the juveniles are relatively insensitive to touch. In...

journal_title：Parasitology

authors： Wright DJ,Birtle AJ,Roberts IT

更新日期：1984-04-01 00:00:00

abstract：:Phylogenetic relationships among Trypanosoma rangeli isolates from man, wild mammals and triatomine bugs from widespread geographical origin were inferred by comparison of the small subunit of ribosomal gene sequences. The phylogenetic trees indicated that the subgenus Herpetosoma is polyphyletic and strongly supporte...

journal_title：Parasitology

authors： Da Silva FM,Noyes H,Campaner M,Junqueira AC,Coura JR,Añez N,Shaw JJ,Stevens JR,Teixeira MM

更新日期：2004-11-01 00:00:00

abstract：:The gastrointestinal nematode Heligmosomoides polygyrus bakeri shows enhanced survival in mice with colitis. As the antibody response plays an important role in antiparasitic immunity, antibodies against male and female L4 H. polygyrus were examined in mice with and without colitis. Levels of specific antibodies in th...

journal_title：Parasitology

authors： Maruszewska-Cheruiyot M,Donskow-Łysoniewska K,Krawczak K,Szewczak L,Joachimiak E,Doligalska M

更新日期：2020-11-01 00:00:00

abstract：:Ascarid parasites infect a variety of hosts and regular anthelmintic treatment is recommended for all species. Parascaris spp. is the only ascarid species with widespread anthelmintic resistance, which allows for the study of resistance mechanisms. The purpose of this study was to establish an in vitro drug exposure p...

journal_title：Parasitology

authors： Scare JA,Dini P,Norris JK,Steuer AE,Scoggin K,Gravatte HS,Howe DK,Slusarewicz P,Nielsen MK

更新日期：2020-05-01 00:00:00

abstract：:Cercariae of the bird schistosome Trichobilharzia regenti and of the human schistosome Schistosoma mansoni employ proteases to invade the skin of their definitive hosts. To investigate whether a similar proteolytic mechanism is used by both species, cercarial extracts of T. regenti and S. mansoni were biochemically ch...

journal_title：Parasitology

authors： Kasný M,Mikes L,Dalton JP,Mountford AP,Horák P

更新日期：2007-10-01 00:00:00

abstract：:The importance of host heterogeneity in generating aggregation was investigated using Heligmosomoides polygyrus (Nematoda) in laboratory mice. Parameters of infection were compared between inbred and outbred mice, between primary and challenge infection protocols, and between gavage and natural exposure protocols, to ...

journal_title：Parasitology

authors： Tanguay GV,Scott ME

更新日期：1992-06-01 00:00:00

abstract：:IgA and IgE activity against Teladorsagia circumcincta was investigated in a flock of Texel lambs following natural, mixed nematode infection among lambs. The distribution of IgA activity was similar to a gamma distribution whereas IgE activity was different. Box-Cox analysis demonstrated that X0.25 was a suitable tra...

journal_title：Parasitology

authors： Murphy L,Eckersall PD,Bishop SC,Pettit JJ,Huntley JF,Burchmore R,Stear MJ

更新日期：2010-07-01 00:00:00

abstract：:The SICA[-] or non-agglutinable phenotype of Plasmodium knowlesi schizont-infected erythrocytes has been defined serologically but not biochemically. Similarly, non-cloned SICA[+] or agglutinable parasites have been shown serologically to express SICA or variant antigen(s) but the number and nature of such antigens ha...

journal_title：Parasitology

authors： Howard RJ,Barnwell JW

更新日期：1985-10-01 00:00:00

abstract：:BALB/c mice were characterized as more resistant to infection with Heligmosomoides polygyrus (Nematoda) than C57BL/6 mice based on lower establishment and survival during a primary infection and stronger protection induced by an immunizing regime. It was hypothesized, therefore, that C57BL/6 mice would be more heavily...

journal_title：Parasitology

authors： Scott ME

更新日期：1991-12-01 00:00:00

abstract：:Ligand-gated chloride channels (LGCCs) are key components of the nervous system of parasitic nematodes and important targets for anthelmintics. Here, we describe the isolation and characterization of a novel member of the LGCC gene family (HcLGCC1) from the parasitic nematode Haemonchus contortus. Sequence analysis re...

journal_title：Parasitology

authors： Forrester SG,Siddiqui SZ

更新日期：2008-04-01 00:00:00

abstract：:Glycans at the surface of adult Schistosoma mansoni were investigated with gold-labelled lectins. The fragile complex of the glycans with the outer membranes could be preserved for electron microscopy by avoiding extensive pre-fixation with aldehydes and by introducing osmium-ferrocyanide as a membrane fixative. Male ...

journal_title：Parasitology

authors： Schmidt J

更新日期：1995-09-01 00:00:00

abstract：:The presence of introduced hosts can increase or decrease infections of co-introduced parasites in native species of conservation concern. In this study, we compared parasite abundance, intensity, and prevalence between native Awaous stamineus and introduced poeciliid fishes by a co-introduced nematode parasite (Camal...

journal_title：Parasitology

authors： Gagne RB,Heins DC,McIntyre PB,Gilliam JF,Blum MJ

更新日期：2016-10-01 00:00:00

abstract：:Dr David Livingstone died on May 1st 1873. He was 60 years old and had spent much of the previous 30 years walking across large stretches of Southern Africa, exploring the terrain he hoped could provide new environments in which Europeans and Africans could cohabit on equal terms and bring prosperity to a part of the ...

journal_title：Parasitology

authors： Barrett MP,Giordani F

更新日期：2017-10-01 00:00:00

abstract：:Infectious agents have considerable potential to regulate or constrain the population growth of vertebrate hosts in natural habitats. A broad theoretical framework provides many insights into how the biology of the parasite and the demography of the host interact to determine this impact. It may manifest itself as a s...

journal_title：Parasitology

authors： Anderson RM

更新日期：1995-01-01 00:00:00

abstract：:A key issue relating to developing multi-component anti-malarial vaccines, lies in studying Plasmodium vivax surface proteins' genetic variation. The present work was aimed at amplifying, cloning and sequencing the gene encoding P. vivax merozoite surface protein 5 (PvMSP5) in samples obtained from infected patients f...

journal_title：Parasitology

authors： Gomez A,Suarez CF,Martinez P,Saravia C,Patarroyo MA

更新日期：2006-12-01 00:00:00

abstract：:Stratospheric ozone depletion threatens to increase exposure to ultraviolet (UV) radiation which is known to be a factor in a number of diseases. There is little doubt that cumulative exposure to UV radiation is important in the aetiology of non-melanoma skin cancers. Evidence is also strong for a link with cutaneous ...

journal_title：Parasitology

authors： Bentham G

更新日期：1993-01-01 00:00:00

abstract：:Several approaches were adopted for the disruption and removal of the tegumental surface from protoscoleces of the horse strain of the hydatid organism, Echinococcus granulosus. The effectiveness of each method and the purity of subsequent microthrix-enriched fractions obtained by differential centrifugation were eval...

journal_title：Parasitology

authors： McManus DP,Barrett NJ

更新日期：1985-02-01 00:00:00

abstract：:Multiple infections, those by more than one parasite in the same erythrocyte, may be adaptive for the malarial parasite as a means to ensure fertility. Alternatively they may simply be the consequence of a non-adaptive process forcing several parasites to compete for resources in one host cell. Avian hosts infected wi...

journal_title：Parasitology

authors： Martínez-de la Puente J,Merino S,Tomás G,Moreno J,Morales J,Lobato E

更新日期：2006-01-01 00:00:00

abstract：:Ticks have numerous natural enemies, but only a few species have been evaluated as tick biocontrol agents (BCAs). Some laboratory results suggest that several bacteria are pathogenic to ticks, but their mode of action and their potential value as biocontrol agents remain to be determined. The most promising entomopath...

journal_title：Parasitology

authors： Samish M,Ginsberg H,Glazer I

更新日期：2004-01-01 00:00:00

abstract：:The fine structure of the envelopes surrounding hatched and unhatched oncospheres of Hymenolepis nana has been investigated by transmission and scanning electron microscopy (SEM), together with light microscope histochemical observations of JB-4 embedded material. The oncosphere is surrounded by 3 layers--the capsule,...

journal_title：Parasitology

authors： Fairweather I,Threadgold LT

更新日期：1981-06-01 00:00:00

abstract：:Immunization against the protozoan Theileria parva by infection and treatment has proved to be very efficient for the control of East Coast fever, an acute and often-fatal lymphoproliferative tick-borne disease of cattle in Eastern, Central and Southern Africa. The immunizing dose of live T. parva sporozoites used in ...

journal_title：Parasitology

authors： Marcotty T,Speybroeck N,Berkvens D,Chaka G,Besa R,Madder M,Dolan T,Losson B,Brandt J

更新日期：2004-02-01 00:00:00

abstract：:Most of our knowledge about the process of penetration of skin, by cercariae of Schistosoma mansoni, has been gained from studies carried out in vivo with laboratory animals. Human skin is significantly different from that of other animals but there are obvious practical difficulties in directly studying attachment an...

journal_title：Parasitology

authors： Khammo N,Bartlett A,Clothier RH,Whitfield PJ

更新日期：2002-01-01 00:00:00

abstract：:In this study, we describe the molecular analysis of zinc-metalloproteases from the abomasal nematode Ostertagia ostertagi which were exclusively recognized by local antibodies of immune cattle. Full-length or partial coding sequences of 4 different zinc-metalloprotease cDNAs of Ostertagia (met-1, -2, -3 and -4) were ...

journal_title：Parasitology

authors： De Maere V,Vercauteren I,Geldhof P,Gevaert K,Vercruysse J,Claerebout E

更新日期：2005-01-01 00:00:00